kopia lustrzana https://github.com/vitorpamplona/amethyst
139 wiersze
4.9 KiB
Kotlin
139 wiersze
4.9 KiB
Kotlin
/**
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* Copyright (c) 2024 Vitor Pamplona
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
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* Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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package com.vitorpamplona.amethyst.ui.components
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import android.util.LruCache
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import androidx.compose.foundation.background
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import androidx.compose.foundation.layout.Arrangement
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import androidx.compose.foundation.layout.Box
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import androidx.compose.foundation.layout.Row
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import androidx.compose.foundation.layout.fillMaxWidth
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import androidx.compose.foundation.layout.padding
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import androidx.compose.material3.Button
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import androidx.compose.material3.ButtonDefaults
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import androidx.compose.material3.MaterialTheme
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import androidx.compose.material3.Text
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import androidx.compose.runtime.Composable
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import androidx.compose.runtime.MutableState
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import androidx.compose.runtime.derivedStateOf
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import androidx.compose.runtime.getValue
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import androidx.compose.runtime.mutableStateOf
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import androidx.compose.runtime.remember
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import androidx.compose.runtime.setValue
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import androidx.compose.ui.Alignment
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.graphics.Color
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import androidx.compose.ui.res.stringResource
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import androidx.compose.ui.unit.dp
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import com.vitorpamplona.amethyst.R
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import com.vitorpamplona.amethyst.commons.richtext.ExpandableTextCutOffCalculator
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import com.vitorpamplona.amethyst.ui.note.getGradient
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import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
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import com.vitorpamplona.amethyst.ui.theme.ButtonBorder
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import com.vitorpamplona.amethyst.ui.theme.ButtonPadding
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import com.vitorpamplona.amethyst.ui.theme.secondaryButtonBackground
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import com.vitorpamplona.quartz.events.ImmutableListOfLists
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object ShowFullTextCache {
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val cache = LruCache<String, Boolean>(10)
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}
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@Composable
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fun ExpandableRichTextViewer(
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content: String,
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canPreview: Boolean,
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quotesLeft: Int,
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modifier: Modifier,
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tags: ImmutableListOfLists<String>,
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backgroundColor: MutableState<Color>,
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id: String,
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accountViewModel: AccountViewModel,
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nav: (String) -> Unit,
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) {
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var showFullText by remember {
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val cached = ShowFullTextCache.cache[id]
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if (cached == null) {
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ShowFullTextCache.cache.put(id, false)
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mutableStateOf(false)
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} else {
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mutableStateOf(cached)
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}
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}
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val whereToCut = remember(content) { ExpandableTextCutOffCalculator.indexToCutOff(content) }
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val text by
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remember(content) {
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derivedStateOf {
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if (showFullText) {
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content
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} else {
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content.take(whereToCut)
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}
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}
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}
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Box {
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RichTextViewer(
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text,
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canPreview,
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quotesLeft,
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modifier.align(Alignment.TopStart),
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tags,
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backgroundColor,
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accountViewModel,
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nav,
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)
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if (content.length > whereToCut && !showFullText) {
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Row(
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verticalAlignment = Alignment.CenterVertically,
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horizontalArrangement = Arrangement.Center,
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modifier =
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Modifier.align(Alignment.BottomCenter)
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.fillMaxWidth()
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.background(getGradient(backgroundColor)),
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) {
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ShowMoreButton {
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showFullText = !showFullText
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ShowFullTextCache.cache.put(id, showFullText)
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}
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}
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}
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}
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}
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@Composable
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fun ShowMoreButton(onClick: () -> Unit) {
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Button(
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modifier = Modifier.padding(top = 10.dp),
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onClick = onClick,
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shape = ButtonBorder,
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colors =
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ButtonDefaults.buttonColors(
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containerColor = MaterialTheme.colorScheme.secondaryButtonBackground,
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),
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contentPadding = ButtonPadding,
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) {
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Text(text = stringResource(R.string.show_more), color = Color.White)
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}
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}
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